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A ball of mass 2 kg and another of mass ...

A ball of mass `2 kg` and another of mass `4 kg` are dropped together from a `60` feet tall building . After a fall of `30` feet each towards earth , their respective kinetic energies will be the ratio of

A

`sqrt2:1`

B

`1:4`

C

`1:2`

D

`1:sqrt2`

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The correct Answer is:
c
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